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ClinicalTrials.gov public records Last synced Jun 10, 2026, 5:37 AM EDT

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Showing 1–24 of 33 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Metastatic HER2-Low Breast Carcinoma Clear all
Recruiting Early Phase 1 Interventional

Pilot Study of [68Ga]Ga-ABY-025 Imaging in Patients Undergoing Treatment With HER2-targeted Therapy

NCT06828588
View directory record Official record
Conditions
Locally Advanced Cancer, Metastatic Cancer, HER2, HER2 + Breast Cancer, HER2 + Gastric Cancer, Squamous Cell Carcinoma of Head and Neck, Esophageal Squamous Cell Carcinoma, HER 2 Low-expressing Breast Cancer
Interventions
[68Ga]Ga-ABY-025
Drug
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Active, not recruiting Phase 3 Interventional Results available

Study of Trastuzumab Deruxtecan (T-DXd) vs Investigator's Choice Chemotherapy in HER2-low, Hormone Receptor Positive, Metastatic Breast Cancer

NCT04494425
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
Trastuzumab deruxtecan, Capecitabine, Paclitaxel, Nab-Paclitaxel
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 105 Years
Enrollment
866 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
27
States / cities
Scottsdale, Arizona • Springdale, Arkansas • Duarte, California + 23 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 3 Interventional

Trastuzumab Deruxtecan (T-DXd) in Patients Who Have Hormone Receptor-negative and Hormone Receptor-positive HER2-low or HER2 IHC 0 Metastatic Breast Cancer

NCT05950945
View directory record Official record
Conditions
Breast Cancer
Interventions
Trastuzumab Deruxtecan
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
5
States / cities
Miami Beach, Florida • Tampa, Florida • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 1Phase 2 Interventional

ERADICATE: A Phase Ib/II Study of Elacestrant Plus Trastuzumab Deruxtecan in Patients With CDK4/6 Inhibitor and Endocrine-resistant HR+/HER2-low or HER2-ultralow Metastatic Breast Cancer

NCT07198724
View directory record Official record
Conditions
Metastatic Breast Cancer, HER2 Low Breast Carcinoma, HER2-negative Breast Cancer, Breast Cancer, Breast Cancer Female
Interventions
Elacestrant, Trastuzumab Deruxtecan
Drug
Lead sponsor
Sarah Sammons, MD
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2038
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

ISPY-P1.01:Evaluating the Safety of Weekly Paclitaxel With Trastuzumab Duocarmazine (SYD985) in Patients With Metastatic Cancer

NCT04602117
View directory record Official record
Conditions
HER2-positive Breast Cancer, HER2 Low, SYD-985, SYD985, Vic-trastuzumab Duocarmazine, Metastatic Cancer, Metastatic Breast Cancer, Metastatic Gastrointestinal Carcinoid Tumor, Metastatic, HER2 Low Breast Cancer, GastroEsophageal Cancer, Gastroesophageal Adenocarcinoma, Endometrium Tumor, Ovarian Cancer, Ovarian Carcinoma, HER2-positive Gastric Cancer, HER2-positive Metastatic Breast Cancer, HER2 Mutation-Related Tumors, HER-2 Protein Overexpression, HER2 Low HR Positive, HR Positive, Hormone Receptor-positive Breast Cancer, Estrogen Receptor Positive Tumor, Progesterone Receptor-positive Breast Cancer, Triple Negative Breast Cancer, Hormone Receptor Negative Breast Carcinoma, Bladder Cancer
Interventions
Vic-trastuzumab duocarmazine (SYD985) + paclitaxel
Drug
Lead sponsor
QuantumLeap Healthcare Collaborative
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced Jun 10, 2026, 5:37 AM EDT
Completed Phase 2 Interventional Results available

A Study of Tucatinib vs. Placebo in Combination With Capecitabine & Trastuzumab in Patients With Advanced HER2+ Breast Cancer

NCT02614794
View directory record Official record
Conditions
HER2 Positive Breast Cancer
Interventions
tucatinib, capecitabine, trastuzumab, placebo
Drug
Lead sponsor
Seagen Inc.
Industry
Eligibility
18 Years and older
Enrollment
612 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
81
States / cities
Birmingham, Alabama • Mobile, Alabama • Goodyear, Arizona + 66 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Jun 10, 2026, 5:37 AM EDT
Not yet recruiting Phase 2 Interventional

Trastuzumab Deruxtecan and Lovastatin in HER2-low and Ultralow Advanced or Metastatic Breast Cancer

NCT07619365
View directory record Official record
Conditions
Breast Cancer, Advanced Breast Cancer, Metastatic Breast Cancer
Interventions
Trastuzumab deruxtecan, Lovastatin
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 2Phase 3 Interventional

A Study of Izalontamab Brengitecan Versus Chemotherapy in Participants With Previously Untreated, Locally Advanced, Recurrent Inoperable, or Metastatic Triple-negative Breast Cancer Ineligible for Anti-PD(L)1 Drugs (IZABRIGHT-Breast01)

NCT06926868
View directory record Official record
Conditions
Breast Neoplasms
Interventions
Iza-bren, Nab-paclitaxel, Paclitaxel, Capecitabine, Carboplatin, Gemcitabine
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
46
States / cities
Hot Springs, Arkansas • Cerritos, California • Long Beach, California + 35 more
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Completed Phase 2 Interventional

A Study of BB-1701 in Previously Treated Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Positive or HER2-low Unresectable or Metastatic Breast Cancer

NCT06188559
View directory record Official record
Conditions
Breast Cancer
Interventions
BB-1701
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
27
States / cities
Los Alamitos, California • Los Angeles, California • San Francisco, California + 22 more
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 1Phase 2 Interventional

A Phase 1/2a Study of DB-1303/BNT323 in Advanced/Metastatic Solid Tumors

NCT05150691
View directory record Official record
Conditions
HER2-positive Advanced Solid Tumor
Interventions
DB-1303/BNT323, Pertuzumab Injection, Ritonavir, Itraconazole
Biological · Drug
Lead sponsor
DualityBio Inc.
Industry
Eligibility
18 Years and older
Enrollment
796 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
35
States / cities
Cerritos, California • Los Angeles, California • San Diego, California + 29 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Terminated No phase listed Observational

An Observational Study of Patients Receiving T-DXd for Treatment of HER2+, and HER2-low Unresectable and/or Metastatic Breast Cancer

NCT05592483
View directory record Official record
Conditions
Breast Cancer
Interventions
None (Observational Study)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
40
States / cities
Mobile, Alabama • Chandler, Arizona • Little Rock, Arkansas + 36 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2024 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 2 Interventional

A Study To Evaluate The Efficacy And Safety Of Ifinatamab Deruxtecan (I-DXd) In Subjects With Recurrent Or Metastatic Solid Tumors (IDeate-PanTumor02)

NCT06330064
View directory record Official record
Conditions
Recurrent or Metastatic Solid Tumors
Interventions
Ifinatamab deruxtecan
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
17
States / cities
Los Angeles, California • Whittier, California • Skokie, Illinois + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 2 Interventional

A Study of Disitamab Vedotin With Other Anticancer Drugs in Solid Tumors

NCT06157892
View directory record Official record
Conditions
Breast Neoplasms, Gastroesophageal Junction Adenocarcinoma, HER2 Low Breast Neoplasms, HER2 Positive Breast Neoplasms, Stomach Neoplasms, Triple Negative Breast Neoplasms, Metastatic Breast Cancer, Metastatic Gastric Cancer, Advanced Breast Cancer, Advanced Gastric Cancer
Interventions
disitamab vedotin, tucatinib
Drug
Lead sponsor
Seagen, a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
82
States / cities
Tucson, Arizona • Orange, California • San Francisco, California + 43 more
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 2 Interventional

Sequencing Antibody Drug Conjugates in ER+/HER2 LOW/ULTRA LOW MBC

NCT06263543
View directory record Official record
Conditions
Breast Cancer, Metastatic Breast Cancer, Advanced Breast Cancer, Hormone-receptor-positive Breast Cancer, Human Epidermal Growth Factor 2 Low Breast Cancer
Interventions
Sacituzumab govitecan
Drug
Lead sponsor
Reshma L. Mahtani, D.O.
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
3
States / cities
Los Angeles, California • Miami, Florida • Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 25, 2025 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 1 Interventional

Testing the Safety of the Combination of Anti-Cancer Drugs CX-5461 (Pidnarulex) and Trastuzumab Deruxtecan (T-DXd) for Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Solid Tumors and Breast Cancer

NCT07137416
View directory record Official record
Conditions
Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Invasive Breast Carcinoma, Locally Advanced Breast Carcinoma, Metastatic Breast Carcinoma, Metastatic HER2-Low Breast Carcinoma, Metastatic HER2-Positive Breast Carcinoma, Metastatic Hormone Receptor-Positive Breast Carcinoma, Metastatic Malignant Solid Neoplasm, Metastatic Triple-Negative Breast Carcinoma, Unresectable Breast Carcinoma, Unresectable HER2-Low Breast Carcinoma, Unresectable HER2-Positive Breast Carcinoma, Unresectable Hormone Receptor-Positive Breast Carcinoma, Unresectable Malignant Solid Neoplasm, Unresectable Triple-Negative Breast Carcinoma
Interventions
Biopsy Procedure, Biospecimen Collection, Echocardiography Test, Multigated Acquisition Scan, Pidnarulex, Radiologic Imaging Procedure, Trastuzumab Deruxtecan
Procedure · Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Completed Phase 2 Interventional

Trastuzumab and Interleukin-2 in Treating Patients With Metastatic Breast Cancer

NCT00006228
View directory record Official record
Conditions
HER2-positive Breast Cancer, Male Breast Cancer, Recurrent Breast Cancer, Stage IV Breast Cancer
Interventions
trastuzumab, aldesleukin, laboratory biomarker analysis, pharmacological study
Biological · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 7, 2013 · Synced Jun 10, 2026, 5:37 AM EDT
Terminated Phase 1 Interventional Results available

QUILT-3.013: Study of Ad5 [E1-, E2b-]-HER2/Neu Vaccine (ETBX-021) in Subjects With Unresectable Locally Advanced or Metastatic HER2-Expressing Breast Cancer

NCT02751528
View directory record Official record
Conditions
Cancer
Interventions
ETBX-021
Biological
Lead sponsor
NantBioScience, Inc.
Industry
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
El Segundo, California • Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Jan 12, 2025 · Synced Jun 10, 2026, 5:37 AM EDT
Completed No phase listed Observational

Estimation of the Prevalence of HER2 Low and Describe the SoC, Treatment Patterns, and Outcome in Real-world Practice Among Unresectable and/or Metastatic Breast Cancer Patients With HER2 Low Status

NCT04807595
View directory record Official record
Conditions
Breast Cancer
Interventions
None (Observational study)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
798 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 5, 2023 · Synced Jun 10, 2026, 5:37 AM EDT
Active, not recruiting Phase 3 Interventional

Study of Sacituzumab Govitecan Versus Treatment of Physician's Choice in Patients With Hormone Receptor-positive/Human Epidermal Growth Factor Receptor 2 Negative (HR+/HER2-) Metastatic Breast Cancer Who Have Received Endocrine Therapy

NCT05840211
View directory record Official record
Conditions
Locally Advanced or Unresectable Metastatic Breast Cancer, Stage IV Breast Cancer
Interventions
Sacituzumab Govitecan-hziy, Paclitaxel, Nab-paclitaxel, Capecitabine
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
654 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
30
States / cities
Chandler, Arizona • Los Angeles, California • Palo Alto, California + 25 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Jun 10, 2026, 5:37 AM EDT
Recruiting Phase 2 Interventional

TReatment of ADC-Refractory Breast CancEr With Dato-DXd or T-DXd: TRADE DXd

NCT06533826
View directory record Official record
Conditions
Breast Cancer, HER2-low Breast Cancer, Metastatic Breast Cancer, HER2-negative Breast Cancer
Interventions
Trastuzumab Deruxtecan, Datopotamab Deruxtecan
Drug
Lead sponsor
Ana C Garrido-Castro, MD
Other
Eligibility
18 Years and older
Enrollment
357 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2038
U.S. locations
11
States / cities
Birmingham, Alabama • San Francisco, California • New Haven, Connecticut + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced Jun 10, 2026, 5:37 AM EDT
Terminated Phase 1 Interventional

Intrathecal Pertuzumab and Trastuzumab in Patients With New Untreated Asymptomatic or Low Symptomatic Brain Metastasis in HER2 Positive Breast Cancer

NCT02598427
View directory record Official record
Conditions
HER2 Positive Untreated Metastatic Breast Cancer, Asymptomatic or Low Symptomatic Brain Metastasis in Breast Cancer
Interventions
Pertuzumab, Trastuzumab
Drug
Lead sponsor
Kimberly Blackwell
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 27, 2018 · Synced Jun 10, 2026, 5:37 AM EDT
Completed Phase 2 Interventional Results available

MCLA-128 With Trastuzumab/Chemotherapy in HER2+ and With Endocrine Therapy in ER+ and Low HER2 Breast Cancer.

NCT03321981
View directory record Official record
Conditions
Breast Cancer Metastatic
Interventions
Zenocutuzumab, Trastuzumab, Vinorelbine, Endocrine therapy
Drug
Lead sponsor
Merus B.V.
Industry
Eligibility
18 Years and older · Female only
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
3
States / cities
Los Angeles, California • Kansas City, Kansas • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Jun 10, 2026, 5:37 AM EDT
Active, not recruiting Phase 1 Interventional

Cyclophosphamide and Veliparib in Treating Patients With Locally Advanced or Metastatic Breast Cancer

NCT01351909
View directory record Official record
Conditions
Locally Advanced Unresectable Breast Carcinoma, Metastatic Breast Carcinoma, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Cyclophosphamide, Laboratory Biomarker Analysis, Veliparib
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2027
U.S. locations
5
States / cities
New York, New York • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jun 10, 2026, 5:37 AM EDT
Completed Phase 1 Interventional

A Study to Examine the Effects of Low and High-fat Meals on Orally Administered Lapatinib in Metastatic ErbB2 Positive Breast Cancer Patients

NCT00821054
View directory record Official record
Conditions
Neoplasms, Breast
Interventions
Lapatinib
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
Buffalo, New York • Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 12, 2017 · Synced Jun 10, 2026, 5:37 AM EDT